At the very beginning of the film there is text reading "Butch Cassidy was ONE THE MOST wanted outlaws in America..." The OF that should be included in the sentence is curiously missing.
At: 33:17, as Butch is narrating the contents of a letter that he is writing to his nephew there is a mismatch between what he is saying and what he is writing. He says, "your mother did too" as he is writing: "so did your mother." The rest of the letter is verbatim.